108 	struct uart_port	port;  member
122 	void			(*pm)(struct uart_port *port,
226 	return __sio_in(up->port.iobase + offset);  in sio_in()
231 	__sio_out(value, up->port.iobase + offset);  in sio_out()
250 static void m32r_sio_stop_tx(struct uart_port *port)  in m32r_sio_stop_tx()  argument
253 		container_of(port, struct uart_sio_port, port);  in m32r_sio_stop_tx()
261 static void m32r_sio_start_tx(struct uart_port *port)  in m32r_sio_start_tx()  argument
265 		container_of(port, struct uart_sio_port, port);  in m32r_sio_start_tx()
266 	struct circ_buf *xmit = &up->port.state->xmit;  in m32r_sio_start_tx()
274 			up->port.icount.tx++;  in m32r_sio_start_tx()
280 		container_of(port, struct uart_sio_port, port);  in m32r_sio_start_tx()
289 static void m32r_sio_stop_rx(struct uart_port *port)  in m32r_sio_stop_rx()  argument
292 		container_of(port, struct uart_sio_port, port);  in m32r_sio_stop_rx()
295 	up->port.read_status_mask &= ~UART_LSR_DR;  in m32r_sio_stop_rx()
299 static void m32r_sio_enable_ms(struct uart_port *port)  in m32r_sio_enable_ms()  argument
302 		container_of(port, struct uart_sio_port, port);  in m32r_sio_enable_ms()
310 	struct tty_port *port = &up->port.state->port;  in receive_chars()  local
318 		up->port.icount.rx++;  in receive_chars()
327 				up->port.icount.brk++;  in receive_chars()
334 				if (uart_handle_break(&up->port))  in receive_chars()
337 				up->port.icount.parity++;  in receive_chars()
339 				up->port.icount.frame++;  in receive_chars()
341 				up->port.icount.overrun++;  in receive_chars()
346 			*status &= up->port.read_status_mask;  in receive_chars()
348 			if (up->port.line == up->port.cons->index) {  in receive_chars()
362 		if (uart_handle_sysrq_char(&up->port, ch))  in receive_chars()
364 		if ((*status & up->port.ignore_status_mask) == 0)  in receive_chars()
365 			tty_insert_flip_char(port, ch, flag);  in receive_chars()
373 			tty_insert_flip_char(port, 0, TTY_OVERRUN);  in receive_chars()
379 	spin_unlock(&up->port.lock);  in receive_chars()
380 	tty_flip_buffer_push(port);  in receive_chars()
381 	spin_lock(&up->port.lock);  in receive_chars()
386 	struct circ_buf *xmit = &up->port.state->xmit;  in transmit_chars()
389 	if (up->port.x_char) {  in transmit_chars()
391 		serial_out(up, UART_TX, up->port.x_char);  in transmit_chars()
393 		up->port.icount.tx++;  in transmit_chars()
394 		up->port.x_char = 0;  in transmit_chars()
397 	if (uart_circ_empty(xmit) || uart_tx_stopped(&up->port)) {  in transmit_chars()
398 		m32r_sio_stop_tx(&up->port);  in transmit_chars()
402 	count = up->port.fifosize;  in transmit_chars()
406 		up->port.icount.tx++;  in transmit_chars()
414 		uart_write_wakeup(&up->port);  in transmit_chars()
419 		m32r_sio_stop_tx(&up->port);  in transmit_chars()
477 			spin_lock(&up->port.lock);  in m32r_sio_interrupt()
479 			spin_unlock(&up->port.lock);  in m32r_sio_interrupt()
526 	struct irq_info *i = irq_lists + up->port.irq;  in serial_link_irq_chain()
541 		ret = request_irq(up->port.irq, m32r_sio_interrupt,  in serial_link_irq_chain()
543 		ret |= request_irq(up->port.irq + 1, m32r_sio_interrupt,  in serial_link_irq_chain()
554 	struct irq_info *i = irq_lists + up->port.irq;  in serial_unlink_irq_chain()
559 		free_irq(up->port.irq, i);  in serial_unlink_irq_chain()
560 		free_irq(up->port.irq + 1, i);  in serial_unlink_irq_chain()
577 		spin_lock(&up->port.lock);  in m32r_sio_timeout()
579 		spin_unlock(&up->port.lock);  in m32r_sio_timeout()
582 	timeout = up->port.timeout;  in m32r_sio_timeout()
587 static unsigned int m32r_sio_tx_empty(struct uart_port *port)  in m32r_sio_tx_empty()  argument
590 		container_of(port, struct uart_sio_port, port);  in m32r_sio_tx_empty()
594 	spin_lock_irqsave(&up->port.lock, flags);  in m32r_sio_tx_empty()
596 	spin_unlock_irqrestore(&up->port.lock, flags);  in m32r_sio_tx_empty()
601 static unsigned int m32r_sio_get_mctrl(struct uart_port *port)  in m32r_sio_get_mctrl()  argument
606 static void m32r_sio_set_mctrl(struct uart_port *port, unsigned int mctrl)  in m32r_sio_set_mctrl()  argument
611 static void m32r_sio_break_ctl(struct uart_port *port, int break_state)  in m32r_sio_break_ctl()  argument
616 static int m32r_sio_startup(struct uart_port *port)  in m32r_sio_startup()  argument
619 		container_of(port, struct uart_sio_port, port);  in m32r_sio_startup()
629 	if (!up->port.irq) {  in m32r_sio_startup()
630 		unsigned int timeout = up->port.timeout;  in m32r_sio_startup()
660 static void m32r_sio_shutdown(struct uart_port *port)  in m32r_sio_shutdown()  argument
663 		container_of(port, struct uart_sio_port, port);  in m32r_sio_shutdown()
677 	if (!up->port.irq)  in m32r_sio_shutdown()
683 static unsigned int m32r_sio_get_divisor(struct uart_port *port,  in m32r_sio_get_divisor()  argument
686 	return uart_get_divisor(port, baud);  in m32r_sio_get_divisor()
689 static void m32r_sio_set_termios(struct uart_port *port,  in m32r_sio_set_termios()  argument
693 		container_of(port, struct uart_sio_port, port);  in m32r_sio_set_termios()
729 	baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/4);  in m32r_sio_set_termios()
731 	baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/16);  in m32r_sio_set_termios()
733 	quot = m32r_sio_get_divisor(port, baud);  in m32r_sio_set_termios()
739 	spin_lock_irqsave(&up->port.lock, flags);  in m32r_sio_set_termios()
746 	uart_update_timeout(port, termios->c_cflag, baud);  in m32r_sio_set_termios()
748 	up->port.read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR;  in m32r_sio_set_termios()
750 		up->port.read_status_mask |= UART_LSR_FE | UART_LSR_PE;  in m32r_sio_set_termios()
752 		up->port.read_status_mask |= UART_LSR_BI;  in m32r_sio_set_termios()
757 	up->port.ignore_status_mask = 0;  in m32r_sio_set_termios()
759 		up->port.ignore_status_mask |= UART_LSR_PE | UART_LSR_FE;  in m32r_sio_set_termios()
761 		up->port.ignore_status_mask |= UART_LSR_BI;  in m32r_sio_set_termios()
767 			up->port.ignore_status_mask |= UART_LSR_OE;  in m32r_sio_set_termios()
774 		up->port.ignore_status_mask |= UART_LSR_DR;  in m32r_sio_set_termios()
780 	if (UART_ENABLE_MS(&up->port, termios->c_cflag))  in m32r_sio_set_termios()
786 	spin_unlock_irqrestore(&up->port.lock, flags);  in m32r_sio_set_termios()
789 static void m32r_sio_pm(struct uart_port *port, unsigned int state,  in m32r_sio_pm()  argument
793 		container_of(port, struct uart_sio_port, port);  in m32r_sio_pm()
796 		up->pm(port, state, oldstate);  in m32r_sio_pm()
807 	unsigned int size = 8 << up->port.regshift;  in m32r_sio_request_std_resource()
813 	switch (up->port.iotype) {  in m32r_sio_request_std_resource()
815 		if (up->port.mapbase) {  in m32r_sio_request_std_resource()
817 			*res = request_mem_region(up->port.mapbase, size, "serial");  in m32r_sio_request_std_resource()
819 			start = up->port.mapbase;  in m32r_sio_request_std_resource()
828 		*res = request_region(up->port.iobase, size, "serial");  in m32r_sio_request_std_resource()
836 static void m32r_sio_release_port(struct uart_port *port)  in m32r_sio_release_port()  argument
839 		container_of(port, struct uart_sio_port, port);  in m32r_sio_release_port()
842 	size <<= up->port.regshift;  in m32r_sio_release_port()
844 	switch (up->port.iotype) {  in m32r_sio_release_port()
846 		if (up->port.mapbase) {  in m32r_sio_release_port()
850 			iounmap(up->port.membase);  in m32r_sio_release_port()
851 			up->port.membase = NULL;  in m32r_sio_release_port()
853 			start = up->port.mapbase;  in m32r_sio_release_port()
857 			release_mem_region(start, 8 << up->port.regshift);  in m32r_sio_release_port()
862 		start = up->port.iobase;  in m32r_sio_release_port()
866 		release_region(start + offset, 8 << up->port.regshift);  in m32r_sio_release_port()
874 static int m32r_sio_request_port(struct uart_port *port)  in m32r_sio_request_port()  argument
877 		container_of(port, struct uart_sio_port, port);  in m32r_sio_request_port()
886 	if (ret == 0 && up->port.flags & UPF_IOREMAP) {  in m32r_sio_request_port()
889 		up->port.membase = ioremap(up->port.mapbase, size);  in m32r_sio_request_port()
890 		if (!up->port.membase)  in m32r_sio_request_port()
902 static void m32r_sio_config_port(struct uart_port *port, int unused)  in m32r_sio_config_port()  argument
905 		container_of(port, struct uart_sio_port, port);  in m32r_sio_config_port()
908 	spin_lock_irqsave(&up->port.lock, flags);  in m32r_sio_config_port()
910 	up->port.fifosize = 1;  in m32r_sio_config_port()
912 	spin_unlock_irqrestore(&up->port.lock, flags);  in m32r_sio_config_port()
916 m32r_sio_verify_port(struct uart_port *port, struct serial_struct *ser)  in m32r_sio_verify_port()  argument
956 		up->port.iobase   = old_serial_port[i].port;  in m32r_sio_init_ports()
957 		up->port.irq      = irq_canonicalize(old_serial_port[i].irq);  in m32r_sio_init_ports()
958 		up->port.uartclk  = old_serial_port[i].baud_base * 16;  in m32r_sio_init_ports()
959 		up->port.flags    = old_serial_port[i].flags;  in m32r_sio_init_ports()
960 		up->port.membase  = old_serial_port[i].iomem_base;  in m32r_sio_init_ports()
961 		up->port.iotype   = old_serial_port[i].io_type;  in m32r_sio_init_ports()
962 		up->port.regshift = old_serial_port[i].iomem_reg_shift;  in m32r_sio_init_ports()
963 		up->port.ops      = &m32r_sio_pops;  in m32r_sio_init_ports()
976 		up->port.line = i;  in m32r_sio_register_ports()
977 		up->port.ops = &m32r_sio_pops;  in m32r_sio_register_ports()
984 		uart_add_one_port(drv, &up->port);  in m32r_sio_register_ports()
1007 	if (up->port.flags & UPF_CONS_FLOW) {  in wait_for_xmitr()
1014 static void m32r_sio_console_putchar(struct uart_port *port, int ch)  in m32r_sio_console_putchar()  argument
1017 		container_of(port, struct uart_sio_port, port);  in m32r_sio_console_putchar()
1041 	uart_console_write(&up->port, s, count, m32r_sio_console_putchar);  in m32r_sio_console_write()
1053 	struct uart_port *port;  in m32r_sio_console_setup()  local
1066 	port = &m32r_sio_ports[co->index].port;  in m32r_sio_console_setup()
1071 	spin_lock_init(&port->lock);  in m32r_sio_console_setup()
1076 	return uart_set_options(port, co, baud, parity, bits, flow);  in m32r_sio_console_setup()
1123 	uart_suspend_port(&m32r_sio_reg, &m32r_sio_ports[line].port);  in m32r_sio_suspend_port()
1134 	uart_resume_port(&m32r_sio_reg, &m32r_sio_ports[line].port);  in m32r_sio_resume_port()
1158 		uart_remove_one_port(&m32r_sio_reg, &m32r_sio_ports[i].port);  in m32r_sio_exit()